Thrust arm shimmy with a twist

[632 Regal]

yes, this is about the brake shimmy I posted a few days ago. Get the shimmy from all speeds 90-20, like a bad rotor brcause you can feel it in the brake peddle.

I inspected the front 2 times and everything is tight, wheels dont seem loose like bad bearings...nothing im stumpt.

Today while trying to simulate the clunking noise that you can feel at your feet I noticed at about 2-5 mph while turning left I get a thud nouse that you can feel in the steering and at your feet, nothing while turning right.

I would venture to guess it could be the LSD clutches (sortof) at break away but the shimmy in the brakes is really confusing me here guys.

I inspected the rear and everythings tight with the dogbones being the only questionable part.

Guesses? I just cant figure this out, EVERYTHiNGS good, everythings tight, fresh thrust arms, complete steering etc....